Index tar



'c. F, BRENNE.

INDEX TAB.

APPLICATION FILED DEC.9, I920.

Patentd Aug. 1, 1922.

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Specification of Letters Patent.

Patented an. I, I922.

Application filed December-9, 1920. Serial Ito. 429,436.

Yakima, in the county of Yakima and tate of Washington, have invented certain new and useful Improvements in Index Tabs, of which the following is a specification.

The present invention relates to improvements in index tabs for use in paper files and binders, and particularly as a filing device for folders, cards,-filing sheets, spacing sheets &c, adapted to 'serve'the usual purposes ofan index tab, as well as perform the functions of a handling means for the article to which it is attached.

The invention contemplates an index element and its guide suitable for use in connection with card or sheet indexes, leaves of books &c, wherein a tab-sheath, preferably of transparent material such as sheet celluloid,'adapted as a handling means, is attached to the article to be indexed. The

In the accompanying drawings I haveillustrated one complete example of the physical embodiment of my invention, together with. a slight modification thereof, wherein the parts are combined and arranged according to the best modes I have thus far devised for the practical application of the principles of my invention. v

Figure 1 is a perspective view of the index device as a whole, before attaching to an article, the index element being shown as slightly protruding fromv its tab-sheath or housing, for convenience of illustration.

Figure 2 is a side view of the device of Figure 1. i

Figure 3 is an enlarged view showing in erspective a portion of the device of Figure 1.

' Figured is a slightly modified form of the.

invention, a fragment of thedevice being shown in perspective.

Figure 5 is a perspective view of one end of one of the index tabs 01' slips. V

In the preferred form of the inventio n as illustrated in Figures 1, 2 and- 3 of the drawmgs I utilize a tab-sheath or housing preferably made of sheet celluloid because of 1t transparency, and fashion the sheath in' peculiar and novel form for the purpose deso sired. The sheet celluloid is fashioned by bending in suitable machineryor by proper' tools to form a pair of opposed lips I and 2 extending parallel from end to end of the sheath and forming the lower portion thereof The upper portion of the sheet is folded or bent as at 3, and the two inner adjoining faces 4 and 5 of the upper portion of the sheath form a pocket 6 incombination with an inner member forming part of the sheath, M

This inner member is preferably of paper or fabric, and conforms quite closely to the shape and size of the celluloid sheath in which it'is inc'ased. Thus the inner member has a pair of opposed lips 7 and 8 coinplementary to the lips'l and 2 of the sheath and the outer faces of these lips are cemented or gummedto the inner faces of the sheath lips I and 2, the adhering parts extending from the free edges of the lips to the points indiso cated at 9, 9 in Figure 3. The upper portion of the inner member haa a folded edge or bend 10, and the opposed bent walls of this member are gummed or cemented together at, their adjoining inner faces from the bend at 10 toa point 11 at,which point or line the lips 7 and '8 diverge. By this combination and, arrangement of parts a somewhat rigid, vertically disposed, longitudinally extending partition 12 is formed at the upper porac .tion of the inner member located in the longitudinal center of the pocket 6, forming complementary lateral spaces in the pocket at the sides of the partition.

The pocket is designed to receive an index at strip indicated as'a whole in Figure 5 by the numeral 13, and the lateral spaces are for the reception of the opposed lips 14 and 15 which diverge from the bend 16 of the slip. This index slip is preferably made of a folded sheet of paper of sufiicient wei ht, bent or folded upon itself as indicate in Figure 5 to form an inverted V-shaped tab that. may readily and with facility be inserted and slid into or out of the pocket in the sheath. 7 For convenience in handling the slip it may be of slightly greater length than the sheath in order that one or the other of its ends may protrude or project from the sheath' end to enable the operator, to grasp sheath are .forced attac ing lips of the sheath may be I afiixed tothe card, leafyor sheet with which specific idea or purpose. sheaths are uncolored, and the colored lndex to the cellu .camphor' or camphor and alcohol is used which softens the face of the celluloid and the end and move the slip as required. These paper slips ,may have printed thereon sultable index characters, and in a filin system a varietyof, colors are adopted for. t e slips, each color, representing or designating a The cellu 'oid slips therein may readil be distinguished by their 'color and the in exing subject mat-1 ter on the slips may be read with facility and ease through the transparent celluloid sheath. The central artition supports the encased index sli an the slip is retained in the pocket b walls of the s eath and the faces ofthe partition, thus reventing dislodgment of the slip, but the atter may readily be withdrawn from the sheathby grasping its protruding end and pulling the slip through the sheath and out at one end thereof.

The inner faces of the lips 7 and 8 of the mmed in order that the reinthe index device is to .be used. In applying the sheath to such a sheet, the reinforced or double-thick attaching lips 1--7 and 2 8 are made to straddle the top or other edge of thesheet and then by suitable pressure the inner gummed or cemented faces of the wall 7 and 8 are aifixed to the opposite faces of-the sheet, thus rigidly and securely attaching the index sheath to the sheet.

Thus it. will be apparent that the inner portion ofthe'sheath is attached to the outer portion along the faces of the lips, the upper portion of the inner member is cemented together to form the partition 12, and the reinforced lips are cemented to the file sheet. In securin the inner member of the sheath loid, as an adhesive, a solution of then by pressure from a heated iron or other implement the inner lips and outer lips may beceme'nted to form an amalgamated 1 or homogeneous cemented joint.

In the modified form of the invention- 12-a nd 12* ofthe inner member form the support for the index slip. By this modified construction the sheath may, be slipped over the filing sheet and'the entire area of the inner faces of the inner member from sheet leaving that portion ofthe sheat the lower edges of the lips to the bend 10" is gummed and may be cemented. to the filing above the bend 10 pro'ecting above the filing sheet.- The two wal s 12 and 12 perrictional contact with the in the spaces between these walls and the I walls of the sheath which adjoin them to form the pocket. The area of surface of the lips to be attached to the sheet may thus be varied and the sheath adjusted with relation to the filing sheet'toanyidesired elevation withinthe limits of the bend lOkand the lower free edges of the lips.

Havin thus fully described my invention,

' 'what I c aim as-new and desire to secure by Letters Patent-is,

.1. An index tab comprising a return transparent sheathforming a pocket, and an inner member attached to said sheath and projecting into said pocket to form lateral spaces and a connectm' space beneath the return bend of the sheat of a depth not less than the width of the lateral spaces, and ad.- hesive means for aflixing the sheath to the edges of a card.

2. An index tab comprising a transparent sheath forming a pocket, an inner member comprising a return bent strip carried by the sheath and forming a pocket with lateral spaces and a connecting space beneath the s eath of a depth not less than the width of said spaces, and adhesive means for afiixing the sheath to the edges of a card.

3. An index tab comprising a transparent sheath forming a pocket, an inner member carried by said sheath and projecting into said pocket to form lateral spaces and a connecting space beneath the sheath of a depth not less than the width of the lateral spaces, and adhesive means for afiixing the sheath .to a card. a

4. The combination with a transparent strip forming a sheath having opposed lips, of an inner member comprising a return bent strip having complementary lips adapted to .be secured to acard, said inner membent projecting into the sheath to form a central longitudinal partition to provide space for the lnsertion of 'an index strip.

5. I'nan index tab, the combination witha member adapted to be secured to a card -to form a projection at one edge thereof, of a return bent strip of transparent material secured to said member and having its return bend spaced from the outer edge of said pro ection, and a returnbent index slip avi'ng' its return bend nestedfwithin said" first mentioned return bend and slidably engageable with said projection, the lower edges of said index slip being spaced from .the junction between said transparent material and card.

In testimony whereof I aflix my signature.

CARL BRENNE- 

